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Fair Value of Financial Instruments (Level 3 assets and liabilities measured at fair value) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Foreclosed real estate	$ 9,532	$ 9,994
Impaired Loans [Member]
Impaired loans	$ 12,284	$ 20,645
Valuation technique	Appraised value; PV of expected cash flows	Appraised value; PV of expected cash flows
Significant unobservable inputs	Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell	Discounts to reflect current market conditions, ultimate collectability, and estimated costs to sell
General range of significant input values, minimum	0.00%	0.00%
General range of significant input values, maximum	10.00%	10.00%
Foreclosed Real Estate [Member]
Foreclosed real estate	$ 9,532	$ 9,994
Valuation technique	Appraised value; List or contract price	Appraised value; List or contract price
Significant unobservable inputs	Discounts to reflect current market conditions and estimated costs to sell	Discounts to reflect current market conditions and estimated costs to sell
General range of significant input values, minimum	0.00%	0.00%
General range of significant input values, maximum	10.00%	10.00%

X

- Definition

Carrying amount as of the balance sheet date of land and buildings obtained through foreclosure proceedings or defeasance in full or partial satisfaction of a debt arrangement covered by loss sharing agreements.

+ References

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+ Details

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X

- Definition

The maximum general range of significant unobservable input values.

+ References

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- Definition

The minimum general range of significant unobservable input values.

+ References

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- Definition

Fair value of impaired loans covered by loss sharing arrangements.

+ References

No definition available.

+ Details

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X

- Definition

Description of significant assumptions used by management to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611

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- Definition

Description of the inputs and valuation technique(s) used to measure fair value.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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